Re: Requirements Categorisation

["Sukanta Ganguly" <SGANGULY@xxxxxxxxxx>]

Hi,
    About the Replication agreement, if the architecture does not nail down the different possibilities i.e one-way/two-way, full/incremental updates and consumer/supplier model, then where would these standard approaches be specified. Also, I believe that the architecture should  clearly spell them out in detail. 

    Another, issues which hink is taken rather lightly is the transaction implications. We have to consider the use and effect of transactioning the replication. Furthermore, the transactions need to be incorporated within this spec or somehow closely tied to it. It would certainly have a lot to impose on the reliability of the system and hence cannot be considered an after thoughts.

Thanks
Sukanta Ganguly

>>> "John Merrells" <merrells@xxxxxxxxxxxx> 04/16 6:48 PM >>>
Sanjay Jain wrote:

> >
> > B) ----------- Replication Protocol -----------
> >
> > 13.2) MUST allow initiator to determine if it is a supplier or consumer.
>
> Should it be specified in the replication agreement or should it be
> determined at the replication updates exchange time ?

I believe that the Replication Agreement should specify this.  But, I don'tthink an architecture should have to implement all
the combinations of:
one-way/two-way, full/incremental update, and consumer/supplier.

> > 23) SHOULD support transactions.
>
> What does that mean ? Does it mean that either all replication updates are
> applied at the consumer site or none ?

I asked about this, but haven't received a response.  My interpretation is that
if we support transactions, then we must faithfully repliciate each transaction
as a transaction.

> Have we covered somewhere the requirement that the relevant meta
> information e.g. relevant ACLs should also be transfered from the supplier
> to the consumer ?

There is no mention of access control in the requirements.  I think we should
have a statement in there regarding this.  Part of the Replication Session
initiation should include some handshaking about what access control models
are supported.  An administrator may wish to only allow replciation to occur
with foreign servers which can apply that administrators access control policy.

John

--
John Merrells
Netscape Communications
Directory Server
Software Engineer

http://people.netscape.com/merrells